Hyperon Production in Bi + Bi Collisions at the Nuclotron-Based Ion Collider Facility and Angular Dependence of Hyperon Spin Polarization

В.Воронюк (снс, ЛФВЭ), Н.С.Цегельник (стажер-исследователь, ЛТФ), Е.Э.Коломейцев (внс, ЛТФ) The strange baryon production in Bi + Bi collisions at √sNN = 9.0 GeV is studied using the PHSD transport model. Hyperon and anti-hyperon yields, transverse momentum spectra, and rapidity spectra are calculated, and their centrality dependence and the effect of …

Light-nuclei production in heavy-ion collisions within a thermodynamical approach

M. Kozhevnikova and Yu. B. Ivanov We present results of simulations of light-nuclei production in relativistic heavy-ion collisions within the updated Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD (ultrarelativistic quantum molecular dynamics) final State interactions (theseus). The simulations were performed for Pb + Pb and Au + Au collisions in the collision …

Light-Nuclei Production in Heavy-Ion Collisions at √sNN = 6.4 – 19.6 GeV in THESEUS Generator Based on Three-Fluid Dynamics

Marina Kozhevnikova, Yuri B. Ivanov Light-nuclei production in relativistic heavy-ion collisions is simulated within an updated Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD (Ultra-relativistic Quantum Molecular Dynamics) final State interactions (THESEUS). The simulations are performed in the collision energy range of √sNN = 6.4–19.6 GeV. The light-nuclei are produced within …

Light-nuclei production in Au+Au collisions at √sNN = 3 GeV within a thermodynamical approach: Bulk properties and collective flow

M. Kozhevnikova (LHEP JINR, Dubna), Yu.B. Ivanov (Kurchatov Inst., Moscow and Dubna, JINR) We present results of simulations of light-nuclei production in Au+Au collisions at a collision energy of √sNN = 3 GeV within the updated Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD (ultrarelativistic quantum molecular dynamics) final State interactions …

Production of light hypernuclei in Au+Au collisions at √sNN=3 GeV within a thermodynamic approach

M. Kozhevnikova and Yu. B. Ivanov Simulations of the Λ-hyperon and light-hypernuclei production in Au+Au collisions at √sNN = 3 GeV were performed within the updated three-fluid hydrodynamics-based event simulator extended by UrQMD (ultrarelativistic quantum molecular dynamics) final state interactions (THESEUS). The light (hyper)nuclei are treated thermodynamically, i.e., they are considered …

Examination of STAR fixed-target data on directed flow at √sNN=3 and 4.5 GeV

Yu. B. Ivanov and M. Kozhevnikova We present results of simulations of directed flow of various hadrons in Au + Au collisions at collision energies of √sNN = 3 and 4.5 GeV. Simulations are performed within the model three-fluid dynamics and the event simulator based on it (THESEUS). The results are compared …

Technical Design Report of the Spin Physics Detector at NICA

The SPD Collaboration: V. Abazov, V. Abramov, L. Afanasyev, R. Akhunzyanov, A. Akindinov, I. Alekseev, A. Aleshko, V. Alexakhin, G. Alexeev, L. Alimov, A. Allakhverdieva, A. Amoroso, V. Andreev, V. Andreev, E. Andronov, Yu. Anikin, S. Anischenko, A. Anisenkov, V. Anosov, E. Antokhin, A. Antonov, S. Antsupov, A. Anufriev, K. Asadova, S. Ashraf, V. Astakhov, A. Aynikeev, M. Azarkin, N. Azorskiy, A. Bagulya, D. Baigarashev, A. Baldin, E. Baldina, N. Barbashina, A. Barnyakov, S. Barsov, A. Bartkevich, V. Baryshevsky, K. Basharina, A. Baskakov, V. Baskov, M. Batista, M. Baturitsky, V. Bautin, T. Bedareva, S. Belokurova, A. Belova, E. Belyaeva, A. …

К теоретической интерпретации данных о взаимодействиях ядер аргона с ядрами при высоких энергиях

В. В. Ужинский, А. С. Галоян, Н. А. Чалый Недавно (2024 г.) коллаборация NA61/SHINE представила экспериментальные данные о рождении π±, K±, протонов и антипротонов в центральных 40Ar +45 Sc взаимодействиях при Plab = 13−150 A · ГэВ/c. Коллаборация сравнила данные с предсказаниями популярных теоретических моделей. Оказалось, что модели неудовлетворительно описывают …

Possible Studies of Two-Particle Transverse Momentum Correlations in Proton–Proton and Deuteron–Deuteron Interactions at NICA Energies

A. Galoyan, A. Ribon & V. Uzhinsky  Two-particle transverse momentum (PT) correlations are investigated for proton–proton and deuteron–deuteron interactions at the center-of-mass energy of NN collisions of 10 GeV. The correlations between Λ—hyperons and anti-Λ—hyperons, K-, π—mesons and protons are calculated using the Geant4 FTF and Pythia 6.4 models. It is shown that PT correlations between Λ—hyperons and …